Flatness assessment for NATM tunnel shotcrete lining quality monitoring based on point cloud and 2D discrete wavelet transform
Shi Qiu, Chunzhong Xiao, Xiao Wei, Qasim Zaheer, Weidong Wang, Jiacen Guan, Runan Cheng, Yangming Luo, J. S. Kuang, Jin Wang
Topics & Concepts
Point cloudFlatness (cosmology)ShotcreteNew Austrian Tunnelling methodWaveletEngineeringComputer scienceCloud computingData acquisitionData miningWavelet transformEllipsePoint (geometry)Surface (topology)AlgorithmStructural engineeringFrequency domainRemote sensingLaser scanningLogarithmFeature (linguistics)Time domainDiscrete wavelet transformData pre-processing3D Surveying and Cultural HeritageInfrastructure Maintenance and MonitoringStructural Health Monitoring Techniques